Mr. Keppel joined SGH in 2006. He has diverse experience in civil, geotechnical, and structural engineering, including investigating, designing, and rehabilitating a variety of structures. Mr. Keppel has participated in several investigations to determine causes of building settlement and retaining wall failures, and has experience with structural and geotechnical monitoring and instrumentation. Mr. Keppel is a registered professional engineer in Massachusetts. He can be reached at sfkeppel@sgh.com.